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Finding the Fourth Proportional to 548,547.80, 822,821.70 and 437,955.80

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Solution

The fourth proportional to 548,547.80, 822,821.70 and 437,955.80 is: 656,933.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,547.80 : 822,821.70 = 437,955.80 : x
  2. Step 2: Convert to fraction form
    548,547.80/822,821.70 = 437,955.80/x
  3. Step 3: Cross multiply
    548,547.80x = 822,821.70 × 437,955.80
  4. Step 4: Simplify right side
    548,547.80x = 360,359,535,880.86
  5. Step 5: Solve for x
    x = 360,359,535,880.86/548,547.80
  6. Step 6: Final answer
    x = 656,933.70

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.